{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process parameter", "engineering feature", "material", "application", "machanical property", "machine or equipment"], "input": "Plastic models of the different extruders have been produced by rapid prototyping and attached to a CNC-machine ."}
{"process parameter": [], "engineering feature": [], "material": ["Plastic"], "application": [], "machanical property": [], "machine or equipment": []}